Hemphila, T., Udomkijmongkol , C. and Aiyakorn, S. (2024) “Influences of Work Motivation on the Performance Efficiency of the Personnel of the Provincial Administrative Organizations in the Upper Northeastern Region 2”, Interdisciplinary Academic and Research Journal . Maha Sara Kham, TH, 4(3), pp. 487–504. doi: 10.60027/iarj.2024.275869.